sanha commented on a change in pull request #2: [NEMO-7] Intra-TaskGroup
pipelining
URL: https://github.com/apache/incubator-nemo/pull/2#discussion_r187039736
##########
File path:
compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/CollectTransform.java
##########
@@ -22,44 +22,49 @@
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
-import java.util.Iterator;
+import java.util.List;
/**
* Collect transform.
* @param <T> type of data to collect.
*/
public final class CollectTransform<T> implements Transform<T, T> {
private String filename;
+ private FileOutputStream fos;
Review comment:
Why do we need to have these `fos` and `oos` as variables? It can be created
only in `close()`.
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